Ammonia scrambling as a result of chloride photoaquation in chloropentaamminerhodium(III)

Journal Article · Wed Nov 06 00:00:00 EST 1985 · Inorg. Chem.; (United States)

DOI:https://doi.org/10.1021/ic00217a019· OSTI ID:5825880

Skibsted, L H

The /sup 15/N-labeled compounds cis- and trans-(Rh(NH/sub 3/)/sub 4/(/sup 15/NH/sub 3/)Cl)Cl/sub 2/ have been prepared. The ammonia ligand that is photoaquated in aqueous perchloric acid solution at 13/sup 0/C as a result of ligand field excitation of labeled Rh(NH/sub 3/)/sub 5/Cl/sup 2 +/ originates to an equal extent from axial and equatorial positions, implying that the axial ammonia is labilized four times as efficiently as the equatorial ammonia ligands. The axial/equatorial ammonia photoaquation ratio shows no significant temperature dependence up to 37/sup 0/C. Isotopic analyses of the ammonia that is photoaquated from labeled Rh(NH/sub 3/)/sub 5/Cl/sup 2 +/ in acidic aqueous chloride solution showed that chloride photoaquation and subsequent photoanation result in ammonia scrambling. 20 references, 3 figures, 2 tables.

• Research Organization: Royal Veterinary and Agricultural Univ., Copenhagen, Denmark
• OSTI ID: 5825880
• Journal Information: Inorg. Chem.; (United States), Vol. 24:23
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
AMMINES
HYDRATION
PHOTOCHEMICAL REACTIONS
CHLORINE COMPOUNDS
RHODIUM COMPOUNDS
AMMONIA
AQUEOUS SOLUTIONS
CHLORINE
EXPERIMENTAL DATA
ISOMERS
ISOTOPE ENRICHED MATERIALS
LABELLED COMPOUNDS
LABELLING
LIGANDS
NITROGEN 15
PERCHLORIC ACID
TEMPERATURE DEPENDENCE
CHEMICAL REACTIONS
COMPLEXES
DATA
DISPERSIONS
ELEMENTS
HALOGEN COMPOUNDS
HALOGENS
HYDRIDES
HYDROGEN COMPOUNDS
INFORMATION
INORGANIC ACIDS
ISOTOPES
LIGHT NUCLEI
MATERIALS
MIXTURES
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NITROGEN ISOTOPES
NONMETALS
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
REFRACTORY METAL COMPOUNDS
SOLUTIONS
SOLVATION
STABLE ISOTOPES
TRANSITION ELEMENT COMPOUNDS
400500* - Photochemistry